15 May 2014, 10:47 AM ET
In a chance discovery, scientists found the first images of a dead whale shark and three dead rays on the bottom of the Atlantic Ocean. Though "fish falls" are common, it's very rare for scientists to find these sunken carcasses.
15 May 2014, 10:16 AM ET
The amazing diversity of sea anemone, stationary animals that typically live on the seafloor or coral reefs and are related to corals and jellyfish, comes to light in stunning images.
14 May 2014, 06:11 PM ET
Elephant seals have surprisingly high levels of naturally produced carbon monoxide in their blood — roughly comparable to the amount of carbon monoxide found in the blood of people who smoke 40 or more cigarettes each day, a new study finds.
14 May 2014, 06:00 PM ET
Sharks are known for their speed and agility under the waves, but how their jagged skin enables these feats has long mystified scientists.
14 May 2014, 06:00 PM ET
Researchers from the Scripps Institution of Oceanography at the University of California, San Diego, are investigating why elephant seals have high levels of carbon monoxide in their blood.
14 May 2014, 05:00 PM ET
A new long-necked dinosaur discovered in Patagonia is the first of its kind found in South America. It's also one of the last survivors of its family, and possibly the smallest.
14 May 2014, 04:06 PM ET
According to the National Climate Assessment, oceans currently absorb about a quarter of human-caused carbon dioxide emissions to the atmosphere, leading to ocean acidification that will alter marine ecosystems in dramatic yet uncertain ways.
14 May 2014, 01:28 AM ET
Canada's trade in polar bear skins is driving international concern, and scrutiny.
14 May 2014, 01:16 AM ET
A bloom of new jellyfish started appearing in the Gulf of Venice last autumn.
13 May 2014, 07:06 PM ET
Jellyfish that cause an unpleasant and sometimes fatal illness can be predicted, new research finds. The results could lead to the closing of beaches during times when winds allow more jellies to float near shore.
13 May 2014, 07:01 PM ET
Petrified giant sperm found in small 16-million-year-old organisms called ostracods are the oldest sperm preserved in rock. In many cases, the sperm are longer than the body size of the organisms that created them.
13 May 2014, 07:01 PM ET
Giant sperm preserved in rock in Australia is the oldest of its kind. The sperm belongs to a mussel-like creature, and the new discovery reveals a reproductive strategy reliant on oddly huge components that has been unchanged for millions of years.
13 May 2014, 06:38 PM ET
A small, toothy fish, which researchers say resembles the terrifying creature from the movie 'Alien,' is turning out to be a big mystery for the scientists who study it.
13 May 2014, 06:17 PM ET
Kryptoglanis shajii, a tiny, subterranean catfish is baffling researchers, who can't seem to classify the species thanks to its strange skeletal characteristics.
13 May 2014, 08:14 AM ET
Fallen logs and wooden remnants of old shipwrecks promote hotspots of life in the otherwise empty deep seafloor.
13 May 2014, 08:07 AM ET
Sunken dead trees and wooden debris are rare food sources in the otherwise empty abyss of the deep seafloor. Now, a new study shows how this debris becomes home to thousands of squirming sea creatures.
13 May 2014, 07:43 AM ET
Since humans first domesticated cats and dogs, these furry friends have taken on increasingly important roles in people's lives. Now, a growing movement aims to recognize Fido and Felix not just as pets, but also as legal citizens.
13 May 2014, 01:19 AM ET
A genetic modification that creates male-only populations could give us a new weapon against invasive fish such as carp that plague our waterways.
13 May 2014, 12:00 AM ET
Cats and dogs can get infected with MRSA bacteria — a type of staph bacteria that is resistant to antibiotics — that is genetically similar to the type of MRSA that occurs in humans.
12 May 2014, 04:32 PM ET
Captive gorillas display fewer stress-related behaviors in response to rainforest sounds.
12 May 2014, 03:20 PM ET
Turtles, like the humans who love them, are a diverse bunch. There are over 300 species of this ancient reptile, and each one has its own preferred diet.
11 May 2014, 10:23 AM ET
Animal mothers employ some strange tricks to raise their young.
11 May 2014, 10:14 AM ET
A recent study found that the musky rat-kangaroo — the tiniest kangaroo species on Earth — can only survive in tropical rainforests, habitats that some scientists say are threatened by global warming.
10 May 2014, 08:18 AM ET
The animal world contains an amazing diversity of genitalia that has been largely unappreciated, even among scientists. Live Science goes to the zoo with author Menno Schilthuizen to talk about the sex lives of ducks, cave insects and humans.
10 May 2014, 07:28 AM ET
Chimpanzees not only possess many of the same personality traits as humans — from agreeableness to extroversion — these traits are structured almost identically in both humans and chimps.
10 May 2014, 03:02 AM ET
Birdwatching is big business, one at risk from the troubles facing the birds being watched.
09 May 2014, 01:34 PM ET
Across the United States, abusive puppy mills persist
09 May 2014, 02:03 AM ET
How is America dealing with the transition of pets from property to companions with rights?
09 May 2014, 01:04 AM ET
Starfish along much of the North American Pacific coast are dying in great numbers from a mysterious starfish wasting syndrome.
08 May 2014, 03:45 PM ET
A unique spider that somersaults down sand dunes through acrobatic flic-flac jumps has a new name, and its dexterity has inspired a model for a spider robot.
08 May 2014, 03:17 PM ET
For pet cats, all the toys in the world can't compare to a simple cardboard box.
08 May 2014, 02:44 PM ET
Lasting feelings of pain or anxiety after an injury may seem perplexing, but they serve an evolutionary purpose, research suggests.